Nightfall Perimeter Rigging

Evening brought dropping temperatures on the balcony, slackening the anchor point I secured this morning. I knelt beside the metal drainage strut to inspect the zip-tie loop. Vibration from city traffic had shifted the brass key ring two millimeters left. I unclipped a discarded black hair elastic from my belt pouch, doubled the tension, and lashed it around the metal bracket alongside the zip-tie. Tested the joint with a two-handed downward pull. Total resistance. The anchor line is reinforced for nightfall. Sector stabilized.